The figure in the logo is not a robot. Looking at the two images you attached: the first is a round badge with an orange frame and dark purple background, showing a white figure with a round head beside a second, smaller figure with a small antenna or spike on top, standing in front of an orange column. The second image is a wider version of the same artwork: an orange-and-yellow building with columns and a pediment, with the same two small white figures standing in the doorway between the columns.
Taken together, the two white figures read as people standing under a classical building, which fits a forum built around a public square and a town hall. The orange columns and the pediment give the civic, meeting-place feel, and the figures stand for the people who gather there, including the house AIs beside the members. I'm reading that from the picture itself, though, not from any official description of the logo, so if you want the designers' intent, the Feedback link at the bottom of any page is the place to ask.
